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Our Work Spirit and Devotion to each and every products comes from our sense of responsibility as a leader in the machinery industry. Techniques based upon scientific knowledge and automation of the Heat Exchanger making processes effectively reduces labor cost and allows us to focus our attention on every products we make.

S&T Corporation aims at perfection in our Heat Exchanger production facilities allowing our professional workers to concentrate more on technical operation. Genuine work spirit comes from the full understanding of the products we make. It is because S&T employs many professional experts who have comprehensive understanding so that the company can put endless emphasises on the developments toward better products.

Prosperity of

“Company that intends on being world best in a extremely specific business field”

To realize the ideology of S&T, Prosper the country and the mankind by the company s prosperity , the executives and the employees of our company will do our best.

Prosperity of

Prosperity of

Dear Customers,

For the 35 years since the foundation in 1979, S&T have been working hard and investing constantly to become the best in the heat exchanger industry by loan free management, and we are growing up to a global corporation exporting our manufactured products to all around the world.

In 1986, S&T already developed and produced high frequency welded fin tubes with our own technology to lead the undeveloped field of the Korean market. Based on that experience, our production of high frequency welded fin tube is the best in the world.

Yet, we are not satisfied. We are putting tireless efforts to become the best also in the fields of air cooled heat exchanger and heat recovery steam generator.

Now the global environment is rapidly changing. S&T will continuously make investments and pursue realization of clean and open management for even more determined status as the global leader in this small field. Also, with our experiences, world-class technology and competitive power, we will accomplish a continuous growth through the maximization of core capabilities.

We consider the customers’ satisfaction as the top priority and we are trying ceaselessly to satisfy them with the best quality, the best price and the precise delivery.

We are always looking forward to greeting you as our customers. Thank you for your continuous encouragement and keen interests.

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Since 1979, long history and experience in the design of all major products(Heat Recovery Steam Generators, High Frequency Welded Spiral Finned Tubes, Air Cooled Heat Exchangers, and several other types of heat Exchangers...) allow S&T to provide customers with an undivided guarantee in the thermal and mechanical performance of our equipments.

1979. Established Samyoung Machinery Co. as a professional manufacturer of thermal equipment.1982. Renamed the company, Samyoung Heat Exchanger Co.,Ltd.(SYHE) Completed the construction of Kimpo Plant.1987. Awarded a prize of the president commendation in the parts of national production and development.

1991. Signed the License agreement with Kentube (Fintube Limited Partnership) of U.S.A. for High Frequency Welded Finned Tubes.1993. Authorized for ASME Stamps U, S and PP and completed the construction of Yicheon Plant.1995. Awarded a prize of the export tower for five million US dollars.1996. Signed the License agreement with GEA-BTT of France for Air Cooled Heat Exchangers. Completed the construction of Changwon Palyong Plant and Seoul Office Building.1997. Awarded a prize of the president commendation in the part of excellent capital goods and development.1998. Authorized for ISO 9001 Certificate and ASME Stamps U, S and PP for Changwon Palyong Plant. Completed the construction of Haman Plant.1999. Authorized for ASME Stamps U, U2, S and PP for Haman Plant.

2000. Listed on KOSDAQ. Authorized for SQL of China for Changwon Palyong Plant.2001. Renewal of ASME Stamps U, S, and PP for Changwon Palyong Plant. Awarded a 50 million Export Tower in the 38th Annual Trade Day.2002. Renamed the company to Samyoung Corporation. Established Guangzhou SY Heavy Industry Co., Ltd in China. Awarded a 70 million Export Tower in the 39th Annual Trade Day.2003. Completed the construction of changwon sungsan plant. Authorized for ISO 9001 Certificate and ASME Stamps U, U2, 2 and PP for Changwon Sungsan Plant. Authorized for SQL of China for Changwon Sungsan Plant.2004 Signed the License agreement with CMI Belgium for vertical HRSG (Heat Recovery Steam Generator)2005. Renamed the company to S&T Corporation.2006. Founded the S&T Group. 2007. Awarded a 100 million dollar Export Tower and the Bronze Tower Order of Industrial Service Merit in the Annual Trade Day. 2008. Re organized by the split into S&T Hodings and S&T Corporation2009. Signed the License agreement with FW for Surface Condenser Authorited for ASME Nuclear Certificates N, NPT, N3 and NS, for Seong San and Haman plants Authorized for KEPIC Nuclear Certificates MN and SN

2010. Signed the License agreement with Deltak of USA for Horizontal HRSG(Heat Recovery Steam Generator)2011. Signed the license agreement with Innospin of Swiss for ACC. 2012. Established S&T Gulf Co., Ltd (Saudi Arabia)

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Essential products in petrochemical plants, oil plants and power plants, and other industrial plants

Existing water cooling heat exchangers had the demerits of giving bad influence to environment such as corrosion and sea water warming because they used sea water in the simple cooling method.

Also, the water cooling heat exchangers had many problems in use because in desert areas like the Middle East, the industrial water is absolutely insufficient.

S&T’s air cooling heat exchanger takes an improved method of cooling with air instead of water. It does not have problems of water supply, and it reduces the environmental pollutions by the destruction of the ecosystem.

With constant research, development and investigation based on the advance technology, and with various experiences gained over the 20 years, S&T is being more and more recognized and increasing market share in the world market with products of low price and high efficiency.

S&T has the air cooler manufacturing capacity of more than 3,000 bundles a year.

Air Cooled Heat Exchanger or the Air Fin Cooler

S&T is a worldwide leading company in the field of Air Cooled Heat Exchangers(ACHE) for petrochemical, refinery, incineration and power plants. S&T undertakes all aspects of engineering from planning and design to fabrication and start up with a computer aided design system. Our accumulated engineering experiences will satisfy our customers’ need and solution to any of their problems.

Air Cooled Heat Exchanger or the Air Fin Cooler

Business Part

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It’s a part with a high frequency welded fin winding a tube. It’s used in the heat recovery equipment for plant arrangements.

S&T already supplied high frequency finned tubes manufactured with our own technologies to the most complex thermal power plants in the mid-90s. (West Incheon, Bundang, Ilsan, Bucheon, Busan, Ulsan, Pyeongtaek, etc.)

S&T has 16 manufacturing lines for high frequency finned tubes, and it’s the biggest in scale in the world. We have the world market share of 25%. We are holding the 1st place in the world market with the technology other corporations cannot follow.

High Frequency Welded Spiral Finned Tube or H/F Finned Tube

Business Part

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A complex thermal power plant uses hot waste gas generated in the operation of gas turbines of existing thermal power generation to generate steam for the operation of steam turbines. It is an environmentally friendly power generation enabling efficient electric power generation in two steps.

A heat recovery boiler uses waste heat to generate steam for the operation of a steam turbine. What mainly influences the quality of a heat recovery boiler is the quality of high frequency finned tubes and the know-how of designing and manufacturing.

S&T is the biggest H.R.S.G. manufacturing factory in the world. With the manufacture of high frequency finned tubes followed by the manufacture of the H.R.S.G. modules, time and cost is much reduced.

Presently, S&T has the manufacturing capacity of about 3,640 panels a year.

Heat Recovery Steam Generator or HRSG

Business Part

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Air pollutants are NOx, dioxin, SOx, dust and such harming the ecosystem including human beings, animals and plants seriously. These occur when waste gas is discharged from boilers or automobiles which exchange fuels such as fossil fuels to energy by burning.

De-nitrification plants remove nitrogen oxides(NOx) generated in the burning condition. A Separate De-NOx facility is necessary after the burning because there is a technical limit of the NOx reduction only by the improvement of burning conditions. As the disposal method after the burning, SCR system is most reliable, and it takes up the most of nitrogen oxides plant market.

Lately, in the process of incineration of rapidly increasing various plastic products with chlorine oxides, much dioxin is generated. Dioxin is a virulent poison. Dioxin disposing equipments can become a key in the environmental equipments industry with the activated supply of technology development due to the strengthened international restrictions.

A desulfurization facility removes sulfur oxides(SOx), an air pollutant generated when sulfur(S) reacts with oxygen(O2) in the burning process of fuels. It must be installed in large power plants and incinerators in and out of Korea. With medium size boiler in Korea, the facility was not completely installed due to the poor economic conditions. However, with the technology developed in Korea, the price became cheaper, and the installation of the facility became possible. It has unlimited market value.

NOx, Dioxin, SOx, Dust Cleaning Technology

Business Part

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Surface condenser is the commonly used term for a water cooled shell and tube heat exchanger installed on the exhaust steam from a steam turbine in power stations. These condensers are heat exchangers which convert steam from its gaseous to its liquid state at a pressure below atmospheric pressure.

S&T designs and manufactures surface condensers with a wide range of power generation application under the full technical and manufacturing know-how transferred from Foster Wheeler which is our technical licensor.

S&T supplies superior efficiency and availability, as well as compatibility with any turbine to meet any needs of our clients in the power generation, chemical, petrochemical and marine engineering industries.

Steam turbine Steam turbine

< Flow Diagram >

Shell type : Rectangular

Number of shells : Single, twin, triple shell

Number of CW passes : One or two passes (or per customer’s requirements)

Number of Pressure zones : Single pressure, dual or triple pressure

Type of Tubes : Titanium, copper alloy, stainless steel, alloyed stainless steel

Down-flow, axial flow, lateral and double lateral flow design

Surface Condenser

Business Part

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Our two factories represent a total production capacity of •3,640 Panels Heat Recovery Steam Generator per year

•3,000 Bundles Air Cooled Heat Exchanger per year

•1,600 km Mechanical Bonded Finned Tubes per year

•5,000 km Extruded Finned Tubes per year

•8,711 km H/F Welded Spiral Finned Tubes per year

S&T is fully equipped with various modern machinery and tools such as cranes, CNC drilling machines, automatic welding systems and several types of automatic finning systems.

1) Heavy Weight and Handling Equipments•100Ton Mobile Crane

•5~100Ton Overhead Cranes

•20Ton Gantry Crane

2) Finning Machine Systems•H/F Welded Tube Finning Machines

•M/B Automatic Tube Finning Machines

•Extruded Automatic Tube Finning Machines

3) CNC Drilling Machine

4) CNC Vertical Type Machining Center

5) CNC Boring Machine

6) Deep Hole Drilling Machine

T1,100 × X,6000 × Y4,000

7) Bending Equipment

•Bending Roller (Max：T175mm)

•Tube Bending Machine (0。~ 180。)

8) Universal Milling Machine

9) Tube End Scarping Machine

10) Demi-water Equipment

11) Welding Equipments

•Gas Tungsten Arc Welding Machine

•DC/AC Submerged Arc Welding Machine

•Flux Core Arc Welding Machine

•Orbital Welding Machine

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Thermal DesignSince we developed a basic program for the steam air heater with our own technology in 1983, all products manufactured by our company is designed by our unique computer program.The program for air cooled heat exchanger and thermal designs made by a French company is now added on S&T s designing knowhow to realize the best designing size. It s updated continuously.We use VALI, the CMI-developed computer program for vertical HRSG(Heat Recovery Steam Generator) engineering.

Mechanical DesignOur production design team is in charge of basic and detailed design including strength calculation and weight calculation of steel structure for all manufactured products. These designing programs thoroughly reflect the demands of our major clients and what designing specification and API 661 demands. These programs are continuously updated.

Auto-cad and 3D simulationAll of our design drawings for the manufacture are operated and examined by the auto-cad program and the 3D program. To make the best of products, they are continuously updated to the latest versions.

S&T applies thorough and perfect examination in every step of the manufacturing process of all products to ensure the best quality.

In every step, employees with the quality maintaining capabilities examine if the accurate ASME code is applied to by comparing the products with the drawings. They do not allow a single error.

Based on regulations such as ISO 9001:2008 and ASME(PP, S, U, U2, N, NPT, NS, N3) and KEPIC(MN,SN), S&T focuses on the safety of its products and the customers satisfaction. It also cares for safety and environmental management of ISO 14001 and 18001.

Global businessOur products are used worldwide mainly in the engineering business such as oil, gas, petroleum, power plants and so on. We will not be content with the present. With ceaseless efforts, we will do our best to satisfy our customers of the present and the future.

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